import time
from datetime import datetime, timedelta
from flask import abort
from flask import current_app, jsonify
from flask import g
from flask import redirect
from flask import render_template
from flask import request
from flask import session
from flask import url_for
from info import constants, db
from info.models import User, News, Category
from info.modules.admin import admin_blu
from info.utils.captcha.common import user_login_data
from info.utils.image_storage import storage
from info.utils.response_code import RET

@admin_blu.route('/news_type',methods=["GET","POST"])
def news_type():

    if request.method == "GET":
        # 查询分类的数据
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg="查询数据错误")

        category_dict_li = []
        for category in categories:
            # 取到分类的字典
            cate_dict = category.to_dict()
            category_dict_li.append(cate_dict)

        # 移除`最新`分类
        category_dict_li.pop(0)

        data = {
            "categories": category_dict_li
        }
        return render_template('admin/news_type.html',data=data)
    # """修改或者添加分类"""
    # 传参数
    cname = request.json.get("name")
    # 如果传了cid,代表是编辑已存在的分类
    cid = request.json.get("id")

    if not cname:
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    if cid:
        # 由分类id
        try:
            cid = int(cid)
            category = Category.query.get(cid)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR,errmsg="参数错误")
        if not category:
            return jsonify(errno=RET.PARAMERR,errmsg="未查询到分类数据")
        category.name = cname
    else:
        category = Category()
        category.name = cname
        db.session.add(category)
    return jsonify(errno=RET.OK,errmsg="OK")


@admin_blu.route('/news_edit_detail',methods=["GET","POST"])
def news_edit_detail():
    """新闻编辑详情"""
    if request.method == "GET":
        # 查询点击的新闻的相关数据并且传入到模板中
        news_id = request.args.get("news_id")

        if not news_id:
            abort(404)

        try:
            news_id = int(news_id)
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html',errmsg="参数错误")

        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg="查询数据错误")
        if not news:
            return render_template('admin/news_edit_detail.html',errmsg="没有查询到数据")

        # 查询分类的数据
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg="查询数据错误")
        category_dict_li = []
        for category in categories:
            # 取到分类的字典
            cate_dict = category.to_dict()
            # 判断当前遍历的分类是否是当前新闻分类，如果是就添加ｉｓ_selected为ＴＲＵＥ
            if category.id == news.category_id:
                cate_dict["is_selected"] = True
            category_dict_li.append(cate_dict)

        # 移除`最新`分类
        category_dict_li.pop(0)

        data = {
            "news":news.to_dict(),
            "categories": category_dict_li
        }

        return render_template('admin/news_edit_detail.html',data=data)
    #　取到post进来的数据
    news_id = request.form.get("news_id")
    title = request.form.get("title")
    digest = request.form.get("digest")
    content = request.form.get("content")
    index_image = request.files.get("index_image")
    category_id = request.form.get("category_id")

    # 1.1 判断数据是否有值
    if not all([title, digest, content, category_id]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")
    # 查询指定id　的新闻
    news = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR,errmsg="参数错误")
    if not news:
        return jsonify(errno=RET.NODATA,errmsg="未查询到新闻数据")
    # 1.2 尝试读取图片
    if index_image:
        try:
            index_image = index_image.read()
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

        # 2. 将标题图片上传到七牛
        try:
            key = storage(index_image)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.THIRDERR, errmsg="上传图片错误")
        news.index_image_url = constants.QINIU_DOMIN_PREFIX + key
    # 3.设置相关参数
    news.title = title
    news.digest = digest
    news.content = content
    news.category_id = category_id

    return jsonify(errno=RET.OK,errmsg="OK")


@admin_blu.route('/news_edit')
def news_edit():
    """新闻编辑"""
    page = request.args.get("p", 1)
    keywords = request.args.get("keywords", None)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    current_page = 1
    total_page = 1

    filters = [News.status == 0]

    if keywords:
        filters.append(News.title.contains(keywords))

    try:
        paginate = News.query.filter(*filters) \
            .order_by(News.create_time.desc()) \
            .paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)

        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_basic_dict())

    data = {"total_page": total_page,
            "current_page": current_page,
            "news_list": news_dict_list
            }

    return render_template('admin/news_edit.html', data=data)

@admin_blu.route('/news_review_action',methods=["POST"])
def news_review_action():
    # 1.获取参数
    news_id = request.json.get("news_id")
    action = request.json.get("action")

    # 2.判断参数
    if not all([news_id,action]):
        return jsonify(errno=RET.PARAMERR,errmsg="参数错误")
    if action not in ("accept","reject"):
        return jsonify(errno=RET.PARAMERR,errmsg="参数错误")

    # 查询新闻数据
    news = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)

    if not news:
        return jsonify(errno=RET.NODATA,errmsg="未查询到数据")
    # 4.根据不同的状态设置不同的值
    if action == "accept":
        news.status = 0
    else:
        #　拒绝通过，需要获取原因
        reason = request.json.get("reason")
        if not reason:
            return jsonify(errno=RET.PARAMERR,errmsg="参数错误")
        news.reason = reason
        news.status = -1

    return jsonify(errno=RET.OK,errmsg="Ok")


@admin_blu.route('/news_review_detail/<int:news_id>')
def news_review_detail(news_id):

    # 通过id查询新闻
    news = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)

    if not news:
        return render_template('admin/news_review_detail.html', data={"errmsg": "未查询到此新闻"})

    # 返回数据
    data = {"news": news.to_dict()}
    return render_template('admin/news_review_detail.html', data=data)


@admin_blu.route('/news_review')
def news_review():
    page = request.args.get("p", 1)
    keywords = request.args.get("keywords", None)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    current_page = 1
    total_page = 1

    filters = [News.status != 0]

    if keywords:
        filters.append(News.title.contains(keywords))

    try:
        paginate = News.query.filter(*filters) \
            .order_by(News.create_time.desc()) \
            .paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)

        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_review_dict())

    data = {"total_page": total_page,
            "current_page": current_page,
            "news_list": news_dict_list
            }

    return render_template('admin/news_review.html', data=data)

@admin_blu.route('/user_list')
def user_list():
    # 获取参数
    page = request.args.get("p",1)

    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1
    users = []
    total_page = 1
    current_page = 1

    try:
        paginate = User.query.filter(User.is_admin == False).order_by(User.last_login.desc()).paginate(page,constants.ADMIN_NEWS_PAGE_MAX_COUNT,False)

        users = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    user_dict_li = []
    for user in users:
        user_dict_li.append(user.to_admin_dict())

    data = {
        "total_page":total_page,
        "current_page": current_page,
        "users": user_dict_li,
    }

    return render_template('admin/user_list.html',data=data)

@admin_blu.route('/user_count')
def user_count():
    # 查询总人数
    total_count = 0
    try:
        total_count = User.query.filter(User.is_admin == False).count()
    except Exception as e:
        current_app.logger.error(e)

    # 查询月新增数
    mon_count = 0
    #　本月开始时间
    t = time.localtime()
    mon_begin_date = datetime.strptime(('%d-%02d-01' % (t.tm_year,t.tm_mon)),'%Y-%m-%d')
    try:
        mon_count = User.query.filter(User.is_admin == False,User.create_time > mon_begin_date).count()

    except Exception as e:
        current_app.logger.error(e)

    # 查询日新增数
    day_count = 0
    day_begin_date = datetime.strptime(('%d-%02d-%02d' % (t.tm_year,t.tm_mon,t.tm_mday)),'%Y-%m-%d')
    try:
        day_count = User.query.filter(User.is_admin == False,User.create_time > day_begin_date).count()
    except Exception as e:
        current_app.logger.error(e)

    # 折线图
    # 定义空数组，保存数据
    active_count = []
    active_time = []
    # 开始时间

    begin_today_time = datetime.strptime(('%d-%02d-%02d' % (t.tm_year,t.tm_mon,t.tm_mday)),'%Y-%m-%d')
    for i in range(0,31):
        begin_date = begin_today_time - timedelta(days=i)
        end_date = begin_today_time - timedelta(days=(i-1))
        # print(end_date)
        count = User.query.filter(User.is_admin == False,User.last_login >= begin_date,User.last_login < end_date).count()
        active_count.append(count)
        active_time.append(begin_date.strftime('%Y-%m-%d'))

    active_time.reverse()
    active_count.reverse()
    data = {
        "total_count":total_count,
        "mon_count": mon_count,
        "day_count": day_count,
        "active_count": active_count,
        "active_time": active_time
    }

    return render_template('admin/user_count.html',data=data)

@admin_blu.route('/index')
@user_login_data
def index():
    user = g.user

    return render_template('admin/index.html',user=user.to_dict())

@admin_blu.route('/login',methods=["GET","POST"])
def login():
    if request.method == "GET":
        # 判断当前是否有登陆，如果由登陆就跳转到管理员后台主页
        user_id = session.get("user_id", None)
        is_admin = session.get("is_admin", False)
        if user_id and is_admin:
            return redirect(url_for('admin.index'))
        return render_template('admin/login.html')
    # 取到登录的参数
    username = request.form.get("username")
    password = request.form.get("password")
    if not all([username,password]):
        return render_template('admin/login.html', errmsg="参数不足")
    # 查询当前用户
    try:
        user = User.query.filter(User.mobile == username,User.is_admin == True).first()
    except Exception as e:
        current_app.logger.error(e)
        return render_template('admin/login.html', errmsg="数据查询失败")
    if not user:
        return render_template('admin/login.html',errmsg="用户不存在")
    if not user.check_password(password):
        return render_template('admin/login.html',errmsg="密码错误")
    if not user.is_admin:
        return render_template('admin/login.html',errmsg="用户权限错误")

    session["user_id"] = user.id
    session["nick_name"] = user.nick_name
    session["mobile"] = user.mobile
    session["is_admin"] = True

    #　跳转到后台管理首页
    return redirect(url_for('admin.index'))
